Home / 26,127.40-39,136.84-12,760.04

Finding the Fourth Proportional to 26,127.40, 39,136.84 and 12,760.04

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Solution

The fourth proportional to 26,127.40, 39,136.84 and 12,760.04 is: 19,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,127.40 : 39,136.84 = 12,760.04 : x
  2. Step 2: Convert to fraction form
    26,127.40/39,136.84 = 12,760.04/x
  3. Step 3: Cross multiply
    26,127.40x = 39,136.84 × 12,760.04
  4. Step 4: Simplify right side
    26,127.40x = 499,387,643.87
  5. Step 5: Solve for x
    x = 499,387,643.87/26,127.40
  6. Step 6: Final answer
    x = 19,113.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.